Cell Biology Overview

The nucleus contains nearly all the cell's DNA and, with it, the coded instructions for making proteins and other important molecules.

Vacuoles store materials like water, salts, proteins, and carbohydrates. Lysosomes break down lipids, carbohydrates, and proteins into small molecules. The cytoskeleton helps the cell maintain its shape and is also involved in movement.

Ribosomes, rough ER, and Golgi apparatus help make and transport proteins.

<p>Chloroplasts capture sunlight to produce food through photosynthesis, and mitochondria convert chemical energy stored in food into usable energy for the cell.</p> Signup and view all the answers

<p>The cell membrane regulates what enters and leaves the cell and also protects and supports the cell.</p> Signup and view all the answers

<p>The cytoplasm is the portion of the cell outside the nucleus.</p> Signup and view all the answers

<p>Mini organs that each have specific jobs within the cell.</p> Signup and view all the answers

<p>Vacuoles store materials like water, salts, proteins, and carbohydrates.</p> Signup and view all the answers

<p>Lysosomes break down lipids, carbohydrates, and proteins into small molecules.</p> Signup and view all the answers

<p>The cytoskeleton helps the cell maintain its shape and is also involved in movement.</p> Signup and view all the answers

<p>Microfilaments are threadlike structures made up of a protein called actin.</p> Signup and view all the answers

<p>Microtubules are hollow structures made up of proteins known as tubulins.</p> Signup and view all the answers

<p>Centrioles are located near the nucleus and help organize cell division.</p> Signup and view all the answers

<p>Ribosomes are small particles of RNA and protein found throughout the cytoplasm in all cells.</p> Signup and view all the answers

<p>The endoplasmic reticulum is where lipid components of the cell membrane are assembled, along with proteins and other materials exported from the cell.</p> Signup and view all the answers

<p>The Golgi apparatus modifies, sorts, and packages proteins and other materials from the endoplasmic reticulum.</p> Signup and view all the answers

<p>Chloroplasts capture energy from sunlight and convert it into food through photosynthesis.</p> Signup and view all the answers

<p>Mitochondria convert chemical energy stored in food into compounds more convenient for the cell to use.</p> Signup and view all the answers

<p>The cell wall is a strong supporting layer around the membrane.</p> Signup and view all the answers

<p>The lipid bilayer gives cell membranes a flexible structure that forms a strong barrier between the cell and its surroundings.</p> Signup and view all the answers

<p>The cell membrane regulates what enters and leaves the cell and also protects and supports the cell.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers